एपीए उद्धरण

Cowen,D V. (1961). The foundations of freedom: With special reference to Southern Africa. Oxford University press.

शिकागो स्टाइल उद्धरण

Cowen,D V. The Foundations of Freedom: With Special Reference to Southern Africa. London: Oxford University press, 1961.

एमएलए उद्धरण

Cowen,D V. The Foundations of Freedom: With Special Reference to Southern Africa. Oxford University press, 1961.